hudson and the inaugural ball, a long list of artists will perform, including john legend, katy perry, smokey robinson and stevie wonder. >> first, a speech that caught all by surprise. cnn's john berman has the details. >> reporter: cloaked in history, shrouded in expectations. >> we will seize it as long as we seize it together. >> reporter: the re-elected president retook the stage where he first stood four years ago to renew the mission of his office. >> now more than ever we must do these things together as one nation and one people. >> reporter: the day began with prayer and then revelation of the fashion variety. the answer to the epic question, what or who is she wearing? a navy thom browne dress and necklace which cathy waterman, the crowd was smaller than last time but with one million people, by no means small. with daughters dancing political friend and foe looked on to witness the oath for the second time in two days, for the fourth time in two terms. >> i barack hussein obama, do solemnly swear. >> this time, the perilous moment was his. >> the office of the president of